MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7c8b1413107f9a3d35196702d64ba038ec3cb3026d77849bba7fb0a50cbba55. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Threat unknown


Vendor detections: 7


Intelligence 7 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7c8b1413107f9a3d35196702d64ba038ec3cb3026d77849bba7fb0a50cbba55
SHA3-384 hash: 643d63702191a6e509103053d9260e4ff61d942ab4eeddd46a882389dfe2b46aa2e06b285f7e377d2efca72914dedbb4
SHA1 hash: bec10c4b674823d48d101b68d0a51bf4d982759b
MD5 hash: d6dd6127cb4b563fc65f63d82c40bd2f
humanhash: whiskey-mountain-lamp-network
File name:Invoice.lnk
Download: download sample
File size:3'444 bytes
First seen:2023-05-11 19:10:34 UTC
Last seen:Never
File type:Shortcut (lnk) lnk
MIME type:application/octet-stream
ssdeep 48:8v5aGU9Dmel0iglZ+JpQfYj1sAT1rTRRSJxo9AIH:8v5IB0+J6YZsErTR0/SAm
TLSH T1E6618D144BE6020CF3F3AB3A99BE66554E3B7946AD31C74E0054814EA2F1A40ED76F37
Reporter abuse_ch
Tags:lnk

Intelligence

File Origin
# of uploads :
1
# of downloads :
121
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28759.LnkHeur.UNOFFICIAL
Create hunting rule

Lnk.Dropper.Agent-9982181-0
Create hunting rule

TwinWave.EvilLNK.LOLBinOddLookPSHELL.20220711.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.OddLook.202207213.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.Guinnesses.20220719.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.PSHELLDancingOnTheCeiling.2020509.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
LNK File - Malicious
Link:
https://app.docguard.net/a7c8b1413107f9a3d35196702d64ba038ec3cb3026d77849bba7fb0a50cbba55/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/645d3dcdc895be5a6e069a67/reports/be438dc3-1a49-46f4-9ea4-64ecb09befe6/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a7c8b1413107f9a3d35196702d64ba038ec3cb3026d77849bba7fb0a50cbba55
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1231071
Signature
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Contains functionality to capture screen (.Net source)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file / registry access)
Windows shortcut file (LNK) starts blacklisted processes
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 864052 Sample: Invoice.lnk Startdate: 11/05/2023 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Windows shortcut file (LNK) starts blacklisted processes 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 4 other signatures 2->42 9 powershell.exe 17 18 2->9         started        process3 dnsIp4 34 masherofmasters.cyou 107.182.128.4, 443, 49699, 49701 META-ASUS Reserved 9->34 12 mshta.exe 1 9->12         started        15 conhost.exe 1 9->15         started        process5 signatures6 58 Windows shortcut file (LNK) starts blacklisted processes 12->58 60 Suspicious powershell command line found 12->60 17 powershell.exe 15 18 12->17         started        process7 dnsIp8 32 masherofmasters.cyou 17->32 30 C:\Users\user\AppData\Roaming\eng1.exe, PE32 17->30 dropped 44 Powershell drops PE file 17->44 22 eng1.exe 3 17->22         started        25 conhost.exe 17->25         started        file9 signatures10 process11 signatures12 46 Antivirus detection for dropped file 22->46 48 Multi AV Scanner detection for dropped file 22->48 50 Machine Learning detection for dropped file 22->50 27 RegAsm.exe 2 22->27         started        process13 signatures14 52 Tries to steal Mail credentials (via file / registry access) 27->52 54 Tries to harvest and steal ftp login credentials 27->54 56 Tries to harvest and steal browser information (history, passwords, etc) 27->56
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7c8b1413107f9a3d35196702d64ba038ec3cb3026d77849bba7fb0a50cbba55/
Threat name:
Shortcut.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-05-11 04:40:29 UTC
File Type:
Binary
AV detection:
13 of 37 (35.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u7elcqjra742hu2rszyc2zf2aohmhszqe3lxqsn3u75quuglxjkq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection spyware stealer
Link:
https://tria.ge/reports/230511-xvyjyaab54/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Executes dropped EXE
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Downloads MZ/PE file
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7c8b1413107/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a7c8b1413107f9a3d35196702d64ba038ec3cb3026d77849bba7fb0a50cbba55

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:EXE_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies executable artefacts in shortcut (LNK) files.
Rule name:Long_RelativePath_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies shortcut (LNK) file with a long relative path. Might be used in an attempt to hide the path.
Rule name:PS_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies PowerShell artefacts in shortcut (LNK) files.
Rule name:SUSP_LNK_PowerShell
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the reference to powershell inside an lnk file, which is suspicious

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Shortcut (lnk) lnk a7c8b1413107f9a3d35196702d64ba038ec3cb3026d77849bba7fb0a50cbba55

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments